Tool holder



FIG. 1 is an upper perspective view;

FIG. 2 is a front elevation view;

FIG. 3 is a rear elevation view;

FIG. 4 is a right side elevation view,

FIG. 5 is a left side elevation view;

FIG. 6 is an enlarged top plan view; and,

FIG. 7 is an enlarged bottom plan view. 

CLAIM The ornamental design for a tool holder, as shown and described. 